Mixer impeller



Fig. 1.1 is a perspective view of a first embodiment of the mixer impeller embodying our new design;

Fig. 1.2 is a rear elevation view thereof;

Fig. 1.3 is a left side elevation view thereof;

Fig. 1.4 is a top plan view thereof;

Fig. 1.5 is a right side elevation view thereof;

1.6 is a bottom plan view thereof; and

Fig. 1.7 is a front elevation view thereof.

Fig. 2.1 is a perspective view of a second embodiment of the mixer impeller embodying our new design;

Fig. 2.2 is a rear elevation view thereof;

Fig. 2.3 is a left side elevation view thereof;

Fig. 2.4 is a top plan view thereof;

Fig. 2.5 is a right side elevation view thereof;

2.6 is a bottom plan view thereof; and

Fig. 2.7 is a front elevation view. 

CLAIM The ornamental design for a mixer impeller, as shown and described. 